i had my floor sanded last week. this floor refinisher sees he cant get his aligator clips inside the main or cb he pulls two breakers out and puts one white and one black on the buss bar no ground no neut. i was scared stiff i wanted to throw him out but i wanted my floor done (my wife did ) i was ready to knock him off the panel w/ a 2x4 now i think what if he got electrocuted he had a 4 wire 30 amp twist lock 4 wire cable only two wires out the panal end. hes been doing this for twenty years i have wood under my panal i should have gave him my rubber gloves.